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The hugely popular G series large case 3 phase alternators have been tried and true for over a decade. Reasonably priced and very durable, these units offer excellent low RPM output, with extremely high milage durability. These units utilize custom designed solid copper rectifier plates with 6 or more press fit high amp diodes for outstanding durability in commercial or recreational vehicles. These units utilize heavy duty regulators and premium NTN bearings, and are available for a wide variety of vehicles. These alternator units offer a higher amperage output at lower RPM than other alternator options. All Mechman alternators are built in the U.S. by hand for your specific application, and every unit is dyno tested prior to shipping.